I never realized that if I learn more about networking it would help me to really understand much more how computer works and give me a background to think about PC itself and for programming. It really opens me mind. It makes so much sense when I know more about things that I just keep using without understanding a bit.
My analogy of IPs and MAC addresses are: the IP is like the street address of your house whereas the MAC address is like the latitude and longitude coordinates of your house
I use: The IP address is like your house Address, it can change when you relocate and it's not fixed; where as MAC address is your name, irrespective of your new location, it remains the same.
It's absolute brilliance! Good animations combined with explanations make it as easy to learn as it's possible for such a complicated issue. Thank you, man!
I'm more than satisfied bro, just keep it on with all those clear information that u give us to keep upgrade our knowledge to become a successful technician or engineering in our future.
Hello, after reading your Network Fundamentals series of articles, I have benefited a lot, but because the video is not translated or the machine translation is inaccurate, my learning journey is relatively difficult, so I wrote the learning content as an article. , I took some pictures from the video as documentation. At the same time, I published Wenhang on the Chinese "Minority" platform, and indicated you and your video connection address, hoping to get your authorization.
This is such high quality content I signed up to give them a dollar per month. It's not much, but it's something. Other than the explanations being clear and easy to follow, I like that key concepts are summarised, many examples are given, there are practice questions and recommendations for further reading. The Australian accent adds a nice touch, haha Great job, guys! Oh, another detail I like are the memory techniques. Such the one for remembering the layers of the OSI model "Please do not throw sausage pizza away"
Maybe you could talk about RFC and the /31 (255.255.255.254) prefix. Thanks for such great classes. Do you think the RFC 1519 (VLSM y CIDR) + RFC 1631 (NAT) + RFC 1918 (Private and Public Addresses) solve the necessity of using IPv6?
Good questions, although a little advanced for this video. No, I don't think those workarounds mean we don't need IPv6. They are workarounds to the problems, not solutions. There are also various drawbacks to these workarounds, especially with NAT. Some things just don't work right when NAT's in place.
This might be semantics but at 11:58 what does the question mean "What are the three different address types?" Is it supposed to be "what are the three different IP network address types?" In that case I would I say: Unicast, Broadcast, Multicast and Anycast. It is quite confusing since theyre all a routing scheme, a type of network traffic AND an IP network address type, all at the same time.
Hi, The looping of packet in router is handle by Time to Live filed in this way the broadcast msg is limited to local network however in multi casting the packet is sent & received between device of multiple network in this case how the looping of the pack does exist if so how it is handle?? plz let me know. if my question is wrong u can correct me.
I did the task at 7:53. Am I correct in assuming that you always have: 2 hosts for a mask /30 48 for /26 254 for /24 1022 for /22 8190 for /20 ? And thanks for the vid, lad!!
7: 53: Ok, I'll take the last one: First 2 bytes are set, first 4 bits of byte 3 are set, last reset. 4th byte is reset. The mask is: FF.FF.F0.00. FF-F0 = 10hex = 16. Now we cnt 16, 32, 48, 64. 64 is the first bigger number. So the nw-address should be: 88.43.48.00. Broadcast address should be: 88.43.63.255, right?
@@NetworkDirection wait no you are right i thought you meant that the document was released in 1981 cause there was no internet 1918 lol but thats the name of the document i got confused untill i did some research
I think a diagram to go along as you explain vlsm would be very helpful instead of just saying what your doing, explain alittle more on how to do it. Sure we can borrow bits- this that and the other but to the new person, there needs to be alittle more to explain on how to do it not just why we are doing it.(wasting IPs etc etc) Also as a handy reference, don't forget the table of bits as 128,64,32,16,4,2 and 1. Each holding a value of one bit. That should be added as well.
You're absolutely right, I struggled a lot when hearing this for the first time, he should at least explain why that method of getting the network id and... is used and how is it working. Also, you forgot the 8 when referencing the table of bits
I believe in the example the head office can use the mac address of the router. I am still confused as to why it matters if devices have different IPs, what about it makes the router unable to connect them if they're using Mac addresses in the first place?
To be precise, IP address is for for network interface card through which devices communicate. usually computers have single network interface card so one IP addrs, whereas routers have many interfaces, so each interface has unique IP addrs. so as a whole each router can have many IP addresses. Hope it helps. sorry for my bad English
The example at 2:05 doesnt make sense to me. If we have a /30 network and are leaving 2 bits for host IP's then we should only have 4 possible host values, but you mentioned 2 of them are reserved, so how do we have enough space for 3 routers and 2 reserved IP's in a 2 bit space
Hi mate, I am writing to you as I am learning for the CCNA Exam. I have never worked in IT. So I am taking everything from the scratch. Some of the explanations does not make any sense for a newbie as he does not understand how to apply them on a computer, like a virtual lab, etc. How can you memorise all of this stuff ? Or, how can you apply the stuff you learn, at least a part ? The best way to learn is practicing. How do we do that? Most of us feel lost, as we have no experience I hope I made myself clear enough :) Btw you do a great job Regards, Andrei
Unicast address vs unicast traffic is different thing ? When i search on internet unicast traffic it shows me unicast address, and i see u didn't mention in your video Anycast, sorry for my bad english , from Mongolia xD
I am a little confused at 7:20 when you say 10.42.40.0 is the start of the next network, are'nt all the digits after network id 10.42.36.0 all host bits?
There is so much to take in but I think if I continue to follow the slides in the end it will all add up. The irony is how will I remember to look out for all these precautionary measures in real time as a network administrator?
I still do not understand one thing from this video. From 5:53, you have used a class A IP address of 10.42.37.12/22 as an example. For a class A IP address, isn't using /22 notation, we would have to consider the second octect as well? How can the 42 remain the same while evaluating the network and the broadcast address? It would be very helpful if you could clear out my confusion. please.
For 6:00 32 - 22 = 10 2 raised to the 10th power gives you the number of address Subtract 2 for the reserved addresses and.... 2^10 - 2 = 1022 why not just do some quick math?
Thanks, this video was very helpful! But I got a little confused around 2:00. You say that the first and last possible host IPs in a network are reserved for the network itself and the broadcast address, leaving only 172.16.200.253 and 172.16.200.254 available in this specific /30 subnet. But you show three routers with the last octets 0 (this confuses me the most), 4 and 8. Is something wrong with the diagram or am I getting it wrong?
I'm having trouble finding the part you mean. I see the /30's on the diagram, but I'm not sure where I mentioned .253 and .254? The 0, 4, and 8 are the network addresses. They are the first IP's in the network. This happens when (in binary) the host portion of the address is all zeroes.
At 5.15, you say the first 3 octets are the Network, and the Host is the last octet. Isn't it a Class B address (172), so the first two octets are network, and last 2, host? Or does that only apply if it's not a subnetted network? Thanks for the great series so far!
I suggest trying to work out the answers on your own first. If you want to see my answers, which is optional, you can get them from the website. They’re $2 a month for answers to all the quizzes
I have a doubt. When you show this ip 172.16.200.8/30 at the routing part (2:05) i understand that just 4 ip address would be available because of /30. Those ip should be .3 .2 .1 .0 or it can be .8 .4 like you show ? Like your videos a lot !
Hi Luis, I am showing a few networks here and 172.16.200.8/30 is one of them. For this, .8, .9, .10, & .11 are the valid IP's. For 172.16.0.0/30 .3 .2 .1 .0 are valid. Thanks, I hope that helps.
So I watched this video for the N'th time, and while I am getting familiar with the whole idea. I am still somewhat confused. Maybe someone can help me out, I would appreciate it very much. So at 4:40, we have the diagram and I am getting a little confused over how the router's subnets work. I thought that since we have a /30 network, the first 6 bits of the 4th octet are turned on. How can the IP be 172.16.*200*.0? Where does that 200 come from? I worked out the bits and I would write the IP as 172.16.252.0 with my current understanding, because the first 6 bits equate to 128, 64, 32, 16, 8, 4 making 252? Upon checking in an IP calculator, I did see the subnet is noted as 252, so I am mixing something up here.. If anyone can tell me how we get 200 for our IP address, my confusion will be eradicated and I'd be forever grateful
Quiz answers here: networkdirection.net/labsandquizzes/quizzes/ip-addressing-in-depth/ The CCENT/CCNA study guide (affiliate): click.linksynergy.com/link?id=RL4E*8CmbSY&offerid=145238.2445867&type=2&murl=http%3A%2F%2Fwww.ciscopress.com%2Ftitle%2F9781587205804
This is absolutely possible, in fact we use it regularly when configuring loopback interfaces. It's a bit advanced for this video, but we use this for things like managing the router, or connecting to other routers with BGP. A /32 address is stand-alone, and is not part of a LAN, and does not have a broadcast or network IP. Don't worry if this doesn't make sense yet.
At 7:41 I still don't get why we have 1.022 usable ips. I mean I get that we have 10 bits available for the hosts given the /22 mask. However I still don't understand the math to get to 1.022. If there's 256 available hosts in 8 bits, how do we get 1.022 with 10 bits? Help please, I'm driving myself crazy lol
Open Windows calculator (in programmer mode) and switch to binary. Then type in 11 1111 1111 (10 bits, all turned on). The number you get in decimal is 1023. So, the largest 10-bit number is 1023. That means a 10-bit number can hold 1024 different values (remember, we start at 0). Two IPs are reserved. That's the network IP and the broadcast IP. So, 1024 minus two is 1022 usable IPs
See the /22 on the IP address? That's what is known as CIDR (cider) notation. The number indicates how many bits are reserved for the subnet mask which are indicated as "1's" Remember that an IPv4 address is a 32 bit value. If you count the number of 0's, that is how many bits there are for IP addresses.
What confusing for me was how they got the number of hosts. But I figured it out, it's 2 to the power of 10 gives you 1024. Minus the 2 special addresses (Network IP and Broadcast IP) and this is how he got 1022 hosts.
Hi @harshbhatt5597, public IPs are any which are not private (RFC1918) or otherwise reserved. You can find a list of reserved IP's on wikipedia. I hope that helps 😀
U said "we count by 4 " at 6:56 , just so to know that I have got it rite , the "4" here is becuz of the difference that you got,(256-252) . Rite? In one of the quiz questions rite after that there's 10.222.76.14/26, if I apply the same logic here the difference is 64 ( 256-192) which gives me 10.22.64.14/26 and 10.222.127.14 Correct?
no we have to look at 4th octat because 26th bit is in 4th octate but i do not understand how can we relate 64 to 14 as we did in the example 36 and 40. please spmeone clear it
counting up by 4: up to 36 and 40. you just introduced what to do but did not explain why it's done the way it's done. even if we can follow this method to work on other subnet masks, we wouldn't understand why we are doing it, and what the insight behind it is. I'd much rather that you introduce the ground base method that works with 1s and 0s to get the answer, that way at least I can understand the very fundamentals behind these numbers, than using "tricks" which I don't understand what's behind it.
Useless skills and confusing explaining it. In real world scenario just use chat gbt to solve this for you rather wasting time doing these calculations. /Thread
I never realized that if I learn more about networking it would help me to really understand much more how computer works and give me a background to think about PC itself and for programming. It really opens me mind. It makes so much sense when I know more about things that I just keep using without understanding a bit.
The more I learn the more I realize I don’t know
That feeling never stops, trust me
ah damn i thought i was the only one having this problem lol.learning for ICND1 everyday and thinking that i didnt learn anything
Same
stay humble and dots will connect
Lol same
My analogy of IPs and MAC addresses are: the IP is like the street address of your house whereas the MAC address is like the latitude and longitude coordinates of your house
not a bad concept
I use: The IP address is like your house Address, it can change when you relocate and it's not fixed; where as MAC address is your name, irrespective of your new location, it remains the same.
It's absolute brilliance! Good animations combined with explanations make it as easy to learn as it's possible for such a complicated issue. Thank you, man!
Getting started with my networking career thanks to your videos
I always learn so much watching your videos 👍
I learn while making them, so we both win 😀
I have been in computers selling different stuff, for many years and none ever took me to that level in networking thanks a lot
Glad to help
you may not know how many asses you've saved my friend, including mine
thank you
Really good to hear! Hope it is going well with you
I'm more than satisfied bro, just keep it on with all those clear information that u give us to keep upgrade our knowledge to become a successful technician or engineering in our future.
I appreciate that
Hello, after reading your Network Fundamentals series of articles, I have benefited a lot, but because the video is not translated or the machine translation is inaccurate, my learning journey is relatively difficult, so I wrote the learning content as an article. , I took some pictures from the video as documentation. At the same time, I published Wenhang on the Chinese "Minority" platform, and indicated you and your video connection address, hoping to get your authorization.
This is such high quality content I signed up to give them a dollar per month. It's not much, but it's something.
Other than the explanations being clear and easy to follow, I like that key concepts are summarised, many examples are given, there are practice questions and recommendations for further reading. The Australian accent adds a nice touch, haha
Great job, guys!
Oh, another detail I like are the memory techniques. Such the one for remembering the layers of the OSI model "Please do not throw sausage pizza away"
This really helped me solidify the math of subnetting.
So good to hear!
im so confused
LIKEWISE BRUV
What about, in particular?
7:15 this is the moment I Liked this video. 😁 Thanks so much for that trick!
You're very welcome!
Loved the part where you taught the duchies by 4 and count the multiples to get network address and broadcast address.
thanks
Love the Visual Aids . Thank you very much .
animations really work wonders, your videos are really good
Thanks!
This content is brilliant! Explained perfectly and easy to understand some courses on Udemy could take note of your methods of teaching concepts!
this is so boring!
but thank you for the video, it makes the learning process less painful
Maybe you could talk about RFC and the /31 (255.255.255.254) prefix. Thanks for such great classes.
Do you think the RFC 1519 (VLSM y CIDR) + RFC 1631 (NAT) + RFC 1918 (Private and Public Addresses) solve the necessity of using IPv6?
Good questions, although a little advanced for this video.
No, I don't think those workarounds mean we don't need IPv6. They are workarounds to the problems, not solutions.
There are also various drawbacks to these workarounds, especially with NAT. Some things just don't work right when NAT's in place.
this is so informative ,thank u so much
Very informative and clear. Thanks!
This might be semantics but at 11:58 what does the question mean "What are the three different address types?"
Is it supposed to be "what are the three different IP network address types?"
In that case I would I say: Unicast, Broadcast, Multicast and Anycast.
It is quite confusing since theyre all a routing scheme, a type of network traffic AND an IP network address type, all at the same time.
CIDR is about ROUTING and routing tables.
Hi,
The looping of packet in router is handle by Time to Live filed in this way the broadcast msg is limited to local network however
in multi casting the packet is sent & received between device of multiple network in this case how the looping of the pack does exist if so how it is handle?? plz let me know. if my question is wrong u can correct me.
I did the task at 7:53.
Am I correct in assuming that you always have:
2 hosts for a mask /30
48 for /26
254 for /24
1022 for /22
8190 for /20
?
And thanks for the vid, lad!!
Looks right to me!
@@NetworkDirection Great.
@@NetworkDirection And btw I really like your educative style and presentation. Keep it up. :)
Great videos! Thank you very much!
7: 53: Ok, I'll take the last one: First 2 bytes are set, first 4 bits of byte 3 are set, last reset. 4th byte is reset. The mask is: FF.FF.F0.00. FF-F0 = 10hex = 16. Now we cnt 16, 32, 48, 64. 64 is the first bigger number. So the nw-address should be: 88.43.48.00. Broadcast address should be: 88.43.63.255, right?
usable 4096 - 2 = 4094 network ip 88.43.48.0 broadcast is 88.43.63.255 i was using magic 16 number.
for the ip 172.16.111.1 /30, the network ip is 172.16.111.0 and the broadcast ip is 172.16.111.3 am i right?
I'm trying to figure that one out too and I came to the same answer
13:50 you put 1918 when you said 1981, otherwise holy fuck best video series ever
Thanks for spotting this. I’ve said it incorrectly, 1918 is correct
@@NetworkDirection wait no you are right i thought you meant that the document was released in 1981 cause there was no internet 1918 lol but thats the name of the document i got confused untill i did some research
Excellent! Putting in your own research and practice is the way forward! You'll always remember RFC1918 now
I think a diagram to go along as you explain vlsm would be very helpful instead of just saying what your doing, explain alittle more on how to do it. Sure we can borrow bits- this that and the other but to the new person, there needs to be alittle more to explain on how to do it not just why we are doing it.(wasting IPs etc etc) Also as a handy reference, don't forget the table of bits as 128,64,32,16,4,2 and 1. Each holding a value of one bit. That should be added as well.
You're absolutely right, I struggled a lot when hearing this for the first time, he should at least explain why that method of getting the network id and... is used and how is it working. Also, you forgot the 8 when referencing the table of bits
Thank you for these great videos, really taught me a lot!
did you ever work out the answer to this question?
Nope unfortunately :(
I believe in the example the head office can use the mac address of the router. I am still confused as to why it matters if devices have different IPs, what about it makes the router unable to connect them if they're using Mac addresses in the first place?
have u found the answer yet
To be precise, IP address is for for network interface card through which devices communicate. usually computers have single network interface card so one IP addrs, whereas routers have many interfaces, so each interface has unique IP addrs. so as a whole each router can have many IP addresses. Hope it helps.
sorry for my bad English
The example at 2:05 doesnt make sense to me. If we have a /30 network and are leaving 2 bits for host IP's then we should only have 4 possible host values, but you mentioned 2 of them are reserved, so how do we have enough space for 3 routers and 2 reserved IP's in a 2 bit space
Hi mate,
I am writing to you as I am learning for the CCNA Exam. I have never worked in IT. So I am taking everything from the scratch.
Some of the explanations does not make any sense for a newbie as he does not understand how to apply them on a computer, like a virtual lab, etc.
How can you memorise all of this stuff ? Or, how can you apply the stuff you learn, at least a part ?
The best way to learn is practicing. How do we do that?
Most of us feel lost, as we have no experience
I hope I made myself clear enough :)
Btw you do a great job
Regards,
Andrei
Try to exercise by giving yourself examples and working them out like the ones in this video.
Unicast address vs unicast traffic is different thing ? When i search on internet unicast traffic it shows me unicast address, and i see u didn't mention in your video Anycast, sorry for my bad english , from Mongolia xD
It's time to blow up my mind again!
😆
It'll get easier the more you do
Video is magnificent bro
I am a little confused at 7:20 when you say 10.42.40.0 is the start of the next network, are'nt all the digits after network id 10.42.36.0 all host bits?
There is so much to take in but I think if I continue to follow the slides in the end it will all add up. The irony is how will I remember to look out for all these precautionary measures in real time as a network administrator?
That's something that will come with experience
I still do not understand one thing from this video. From 5:53, you have used a class A IP address of 10.42.37.12/22 as an example. For a class A IP address, isn't using /22 notation, we would have to consider the second octect as well? How can the 42 remain the same while evaluating the network and the broadcast address?
It would be very helpful if you could clear out my confusion. please.
how do subnets connect through routers? when you said in the previous video they cant
Routers sit between subnets, and pass packets from one subnet to another
Network Direction thanks for explaining it
@@TNJplays You're welcome
For 6:00
32 - 22 = 10
2 raised to the 10th power gives you the number of address
Subtract 2 for the reserved addresses and....
2^10 - 2 = 1022
why not just do some quick math?
what if you need to know the network ip and the broadcast ip?
Thanks, this video was very helpful! But I got a little confused around 2:00. You say that the first and last possible host IPs in a network are reserved for the network itself and the broadcast address, leaving only 172.16.200.253 and 172.16.200.254 available in this specific /30 subnet. But you show three routers with the last octets 0 (this confuses me the most), 4 and 8. Is something wrong with the diagram or am I getting it wrong?
I'm having trouble finding the part you mean. I see the /30's on the diagram, but I'm not sure where I mentioned .253 and .254?
The 0, 4, and 8 are the network addresses. They are the first IP's in the network. This happens when (in binary) the host portion of the address is all zeroes.
Great job man. Thank you so much
Miga Arumai! Valthukkal!
Thanks!
At 5.15, you say the first 3 octets are the Network, and the Host is the last octet. Isn't it a Class B address (172), so the first two octets are network, and last 2, host? Or does that only apply if it's not a subnetted network?
Thanks for the great series so far!
No, he's right. You got it mixed up. A 24 bit subnetted network is a class c network
Iyed Bouazdia Thanks. So the IP class range (0-127, 128-191 etc.) doesn’t necessarily apply to sub-netted networks?
YOU EDUCATED ME!!!!
do i have to pay to your website so i can get the quiz answers?
I suggest trying to work out the answers on your own first.
If you want to see my answers, which is optional, you can get them from the website. They’re $2 a month for answers to all the quizzes
@@NetworkDirection pretty doable.
Amazing , I've learnt a great deal
I have a doubt. When you show this ip 172.16.200.8/30 at the routing part (2:05) i understand that just 4 ip address would be available because of /30. Those ip should be .3 .2 .1 .0 or it can be .8 .4 like you show ?
Like your videos a lot !
Hi Luis, I am showing a few networks here and 172.16.200.8/30 is one of them. For this, .8, .9, .10, & .11 are the valid IP's.
For 172.16.0.0/30 .3 .2 .1 .0 are valid.
Thanks, I hope that helps.
With a /30 do we have any host address because in my understanding with subtract the network and broadcast ip. what are we remaining with ?
/30 leaves room for four IP addresses. As you've mentioned, we can't use the host or broadcast IPs. That leaves us with two that we can use
Programmers and computer scientists really love their acronyms don’t they..
I got lost why we subtract from 256 and not 255? Can someone explain please. Thank you in advance!
Good question. There are 256 numbers, and they range from 0 to 255
So I watched this video for the N'th time, and while I am getting familiar with the whole idea. I am still somewhat confused. Maybe someone can help me out, I would appreciate it very much.
So at 4:40, we have the diagram and I am getting a little confused over how the router's subnets work.
I thought that since we have a /30 network, the first 6 bits of the 4th octet are turned on. How can the IP be 172.16.*200*.0? Where does that 200 come from?
I worked out the bits and I would write the IP as 172.16.252.0 with my current understanding, because the first 6 bits equate to 128, 64, 32, 16, 8, 4 making 252?
Upon checking in an IP calculator, I did see the subnet is noted as 252, so I am mixing something up here..
If anyone can tell me how we get 200 for our IP address, my confusion will be eradicated and I'd be forever grateful
Really good videos keep it up 👍
Great video, but i'm still confused :'D
That's ok, it can take a while. Just keep trying
@@NetworkDirection Thank you to make all this video. I'm crazy studying at my college 😵
Quiz answers here: networkdirection.net/labsandquizzes/quizzes/ip-addressing-in-depth/
The CCENT/CCNA study guide (affiliate):
click.linksynergy.com/link?id=RL4E*8CmbSY&offerid=145238.2445867&type=2&murl=http%3A%2F%2Fwww.ciscopress.com%2Ftitle%2F9781587205804
How did you get 252 in the 3rd Octet in the Magic Number section?
Figured it out watching this video ruclips.net/video/XQ3T14SIlV4/видео.html
@@trpcltek thank u so much bro
can there be a scenario where the IP address is /32? How can I navigate that? thanks
This is absolutely possible, in fact we use it regularly when configuring loopback interfaces.
It's a bit advanced for this video, but we use this for things like managing the router, or connecting to other routers with BGP.
A /32 address is stand-alone, and is not part of a LAN, and does not have a broadcast or network IP.
Don't worry if this doesn't make sense yet.
@@NetworkDirection Thank you very much for your response
At 7:41 I still don't get why we have 1.022 usable ips. I mean I get that we have 10 bits available for the hosts given the /22 mask. However I still don't understand the math to get to 1.022. If there's 256 available hosts in 8 bits, how do we get 1.022 with 10 bits? Help please, I'm driving myself crazy lol
Open Windows calculator (in programmer mode) and switch to binary. Then type in 11 1111 1111 (10 bits, all turned on).
The number you get in decimal is 1023. So, the largest 10-bit number is 1023. That means a 10-bit number can hold 1024 different values (remember, we start at 0).
Two IPs are reserved. That's the network IP and the broadcast IP.
So, 1024 minus two is 1022 usable IPs
@@NetworkDirection thanks for the informations cheers mate
I Trully love it,, the best
job well done sir
Why is does the question answer link lead to the patreon ? Or is it supposed to be that way?
how do you know there are 10 bits at 7:30?
See the /22 on the IP address? That's what is known as CIDR (cider) notation. The number indicates how many bits are reserved for the subnet mask which are indicated as "1's" Remember that an IPv4 address is a 32 bit value. If you count the number of 0's, that is how many bits there are for IP addresses.
@@JJFlores197 thank you so much
Awesome.
Thank you! Cheers!
6:55
how it is 37, the octet in ip????
he just picked a random ip address to work with
He means in the IP above, 10.42.37.12. This confused me at first too
@ 7:33 How are you coming up with 10 host bits?
cuz the subnet mask is set to /22, which gives you 10 bits for hosts
What confusing for me was how they got the number of hosts. But I figured it out, it's 2 to the power of 10 gives you 1024. Minus the 2 special addresses (Network IP and Broadcast IP) and this is how he got 1022 hosts.
Felt sorry for the printer, what if it wanted to watch the video stream :/
hahaha
14:16 all other IPs ,,, Which one are Public ???
Hi @harshbhatt5597, public IPs are any which are not private (RFC1918) or otherwise reserved. You can find a list of reserved IP's on wikipedia. I hope that helps 😀
U said "we count by 4 " at 6:56 , just so to know that I have got it rite , the "4" here is becuz of the difference that you got,(256-252) . Rite?
In one of the quiz questions rite after that there's 10.222.76.14/26,
if I apply the same logic here the difference is 64 ( 256-192) which gives me
10.22.64.14/26 and 10.222.127.14
Correct?
no we have to look at 4th octat because 26th bit is in 4th octate but i do not understand how can we relate 64 to 14 as we did in the example 36 and 40. please spmeone clear it
252 came from adding 128+64+32+16+8+4, which is a representation of 22 subnet
Thank you 😭🙏
You're most welcome
I'm totally lost. I don't understand the whole subnet thing.
Loved it
Thanks again!
i think subnetting is a bit confusing to me
Don't worry, it confuses everyone at first.
Keep at it. Eventually it will all fall into place
can some one please tell me answers at 7:53 the first address?
Address: 192.168.24.210 11000000.10101000.00011000 .11010010
Netmask: 255.255.255.0 = 24 11111111.11111111.11111111 .00000000
Network address: 192.168.24.0 /24
Broadcast address: 192.168.24.255
Hosts: 256-2(reserved add)=254
Some segments in the video are stamped not adjacent to each other
Sorry, I'm not sure what you mean?
I don't understand ...
Video keeps locking up at about half way through.
might wanna check your network
Maasha Allah
thank you
I had to slow the video to 0.75 speed to understand what he was saying
thanks a lot..
Thank you!
Hello, is anyone still learning networking? Can I have some contacts so we can discuss on some problems?
counting up by 4: up to 36 and 40. you just introduced what to do but did not explain why it's done the way it's done. even if we can follow this method to work on other subnet masks, we wouldn't understand why we are doing it, and what the insight behind it is. I'd much rather that you introduce the ground base method that works with 1s and 0s to get the answer, that way at least I can understand the very fundamentals behind these numbers, than using "tricks" which I don't understand what's behind it.
I feel physically sick trying to understand any of this.
Don't worry, give it time, you'll get there
Specify the goal and need money
???
Useful but the method of teaching can be more interesting and fun
The math was confusing.
Bru it's a lot to take in 🤣
Can't argue with you there
im so fucking confused lmao
12:53
You all are called Asian...⁉️
APNIC = Asia Pacific; Covers Asia, Australia, New Zealand, a lot of the Polynesian islands, and probably more
Useless skills and confusing explaining it. In real world scenario just use chat gbt to solve this for you rather wasting time doing these calculations. /Thread
17:32 it appears that APIPA is aka "link-local addresses", based on its reserved IP range.
en.wikipedia.org/wiki/Reserved_IP_addresses
Yes that's right. You're not supposed to use this range for other things. Although I have definitely seen people do it
Some segments in the video are stamped not adjacent to each other
Sorry, I'm not sure what you mean?